alphainnoTec LWD 50A User manual

We reserve the right to modify technical specifications without prior notice.
83053500bUK – Translation of the operating manual © Alpha-InnoTec GmbH
HEAT PUMPS
Operating Manual
Dual / Outdoor Installation
A IR / WAT ER
UK
LWD 50A • LWD 70A
LWD 50A/RX
• LWD 70A/RX

2We reserve the right to modify technical specifications without prior notice.
83053500bUK – Translation of the operating manual © Alpha-InnoTec GmbH
Please read rst
This operating manual provides important information
on the handling of the unit. It is an integral part of the
product and must be stored so that it is accessible in the
immediate vicinity of the unit. It must remain available
throughout the entire service life of the unit. It must be
handed over to subsequent owners or users of the unit.
Read the operating manual before working on or
operating the unit. This applies in particular to the
chapter on safety. Always follow all instructions
completely and without restrictions.
It is possible that this operating manual may contain
instructions that seem incomprehensible or unclear. In
the event of any questions or if any details are unclear,
contact the factory customer service department or the
manufacturer’s local partner.
Since this operating manual was written for several
different models of the unit, always comply with the
parameters for the respective model.
This operating manual is intended only for persons
assigned to work on or operate the unit. Treat all
constituent parts condentially. The information
contained herein is protected by copyright. No part of
this manual may be reproduced, transmitted, copied,
stored in electronic data systems or translated into
another language, either wholly or in part, without the
express written permission of the manufacturer.
Symbols
The following symbols are used in the operating manual.
They have the following meaning:
Information for operators.
Information or instructions for qualied
technicians.
DANGER!
Indicates a direct impending danger
resulting in severe injuries or death.
WARNING!
Indicates a potentially dangerous situation
that could result in serious injuries or
death.
CAUTION!
Indicates a potentially dangerous situation
that could result in medium or slight
injuries.
ATTENTION
Indicates a potentially dangerous situation, which
could result in property damage.
NOTICE.
Emphasised information.
Flammable materials
Dangerous electrical voltage
€ENERGY SAVING TIP
Indicates suggestions that help to save energy,
raw materials and costs.
Reference to other sections of the operating
manual.
Reference to other documents of the
manufacturer.

3
Contents
INFORMATION FOR USERS AND
QUALIFIED PERSONNEL
PLEASE READ FIRST..................................................................2
SYMBOLS .....................................................................................2
INTENDED USE..........................................................................4
DISCLAIMER................................................................................4
EC CONFORMITY .....................................................................4
SAFETY.........................................................................................4
CUSTOMER SERVICE ................................................................5
WARRANTY / GUARANTEE ....................................................5
DISPOSAL ....................................................................................5
INFORMATION FOR USERS
OPERATING PRINCIPLE OF HEAT PUMPS..........................6
AREA OF UTILISATION............................................................6
HEAT METERING .......................................................................6
OPERATION ................................................................................6
CARE OF THE UNIT..................................................................6
MAINTENANCE OF THE UNIT..............................................6
Cleaning and flushing of unit components........................7
MALFUNCTIONS.......................................................................7
INSTRUCTIONS FOR QUALIFIED TECHNICIANS
SCOPE OF DELIVERY..................................................7
INSTALLATION AND ASSEMBLY...........................................8
Installation location..............................................................8
Transport to installation location......................................8
Installation..............................................................................8
Installation with wall bracket..............................................9
Installation on floor bracket ...............................................9
Condensate drain ................................................................9
Connection to the heating circuit....................................10
Electrical connections........................................................11
PRESSURE RELIEF.....................................................................11
OVERFLOW VALVE..................................................................11
BUFFER TANK...........................................................................11
CIRCULATING PUMPS ...........................................................11
DOMESTIC WATER HEATING..............................................11
DOMESTIC HOT WATER TANK ..........................................12
RINSING, FILLING AND BLEEDING THE SYSTEM ..........12
Water quality of the fill and additional water in hot
water heating systems .................................................12
INSULATING THE HYDRAULIC CONNECTIONS ..........13
COMMISSIONING ...................................................................14
DISMANTLING .........................................................................14
Withdrawal from service...................................................15
Markings ...............................................................................15
Recovery/recycling..............................................................15
TECHNICAL DATA / SCOPE OF DELIVERY
LWD 50A – LWD 70A .......................................................16
TECHNICAL DATA / SCOPE OF DELIVERY
LWD 50A /RX– LWD 70A/RX.........................................18
PERFORMANCE CURVES
LWD 50A..............................................................................20
LWD 70A..............................................................................21
LWD 50A/RX Heating mode ............................................22
LWD 50A/RX Cooling mode............................................23
LWD 70A/RX Heating mode ............................................24
LWD 70A/RX Cooling mode............................................25
SOUND PRESSURE LEVEL......................................................26
DIMENSIONAL DRAWINGS .................................................27
INSTALLATION PROTECTION AREAS...............................28
FLOOR BRACKET INSTALLATION PLAN..........................30
OUTDOOR, OPEN FIELD INSTALLATION PLAN............31
MINIMUM CLEARANCES.......................................................32
DRILLING PATTERN FOR WALL BRACKET......................33
VIEW OF FOUNDATION.......................................................34
OUTSIDE CONNECTION OF CONDENSATE PIPE.........35
CIRCUIT DIAGRAMS
LWD 50A(RX) – LWD 70A(RX)......................................38
APPENDIX
EC DECLARATION OF CONFORMITY..............................42
GENERAL CHECKLIST
COMPLETION REPORT FOR HEAT PUMP SYSTEMS
CUSTOMER SERVICE
Addresses for service.........................................................46
We reserve the right to modify technical specifications without prior notice.
83053500bUK – Translation of the operating manual © Alpha-InnoTec GmbH

4We reserve the right to modify technical specifications without prior notice.
83053500bUK – Translation of the operating manual © Alpha-InnoTec GmbH
Intended use
The unit may be used only for the intended purpose. This
means - only in combination with the manufacturer’s
hydraulic module:
•for heating
•for cooling (RX variants only)
•for domestic water heating
The unit may be operated only within its technical
parameters.
Overview “Technical data / scope of delivery”.
NOTE.
Notify the responsible power supply company of
the use of a heat pump or heat pump system.
ATTENTION
The unit is not suitable for use in IT network
systems.
CAUTION!
The unit may only be stored in rooms
that do not contain permanent ignition
sources. Do not drill or torch!
CAUTION.
Install the heat pump only outdoors and
operate only with outside air as the heat
source.
Disclaimer
The manufacturer is not liable for losses resulting from
any use of the unit which is not its intended use.
The manufacturer’s liability also expires:
•if work is carried out on the unit and its
components contrary to the instructions in this
operating manual.
•if work is improperly carried out on the unit and
its components.
•if work is carried out on the unit which is not
described in this operating manual, and this
work has not been explicitly approved by the
manufacturer in writing.
•if the unit or components in the unit have been
altered, modied or removed without the explicit
written consent of the manufacturer.
EC conformity
The unit bears the CE mark of conformity.
EC declaration of conformity
Safety
The unit is safe to operate for its intended use. The
construction and design of the unit conform to current
state of the art standards, all relevant DIN/VDE
regulations and all relevant safety regulations.
Every person who performs work on the unit must
have read and understood the operating manual prior
to starting any work. This also applies if the respective
person has already worked with such a unit or a similar
unit or has been trained by the manufacturer.
Every person who performs work on the unit must
comply with the applicable accident prevention and
safety regulations. This applies in particular to the
wearing of personal protective equipment.
DANGER!
Risk of fatal injury due to electric shock!
Electrical connections may be installed
only by qualied electricians.
Before opening the unit, disconnect the
system from the power supply and secure
it from being switched back on!
WARNING!
Only qualied personnel (trained heating,
cooling and refrigerant tters and
electricians) may perform work on the
unit and its components.
WARNING!
Observe safety labels on and in the unit.
WARNING!
Unit contains ammable refrigerants!
If refrigerant leaks an explosion hazard is
caused. If this happens:
– Shut down unit.
– Notify the manufacturer’s authorised
service centre.
- Keep ignition sources away.

5
We reserve the right to modify technical specifications without prior notice.
83053500bUK – Translation of the operating manual © Alpha-InnoTec GmbH
ATTENTION
For safety reasons:
Never disconnect the unit from the power sup-
ply, unless the unit is being opened.
ATTENTION
Install the heat pump only outdoors and operate
only with outside air as the heat source. Do not
restrict or block the air-conducting sides.
Dimensional drawing and installation plan for
respective model.
WARNING!
Never switch on unit if façade parts on the
unit are removed.
ATTENTION
It is not permitted to integrate the heat pump in
ventilation systems. The use of the cooled air for
cooling purposes is not permitted.
ATTENTION
The ambient air at the place in which the heat
pump is installed, as well as the air drawn in as
a heat source, must not contain any corrosive
constituents!
Constituents (such as ammonia, sulphur, chlo-
rine, salt, sewage gases, ue gases…) can cause
damage to the heat pump, which can lead to
complete failure / irreparable damage to the
heat pump!
CAUTION!
In the air outlet area the air temperature
is approx. 5 K below the ambient
temperature. Under certain climatic
conditions, therefore, an ice layer can
form in the air outlet area. Install the heat
pump so that the air blower does not blow
in the direction of footpaths.
Customer service
For technical information please contact a qualied
technician or the manufacturer’s local partner.
Overview “Customer service”.
Warranty / Guarantee
For warranty and guarantee conditions, please refer to
the purchase documents.
NOTE.
Please contact your dealer concerning warran-
ties and guarantees.
Disposal
When decommissioning the unit, always comply with
applicable laws, directives and standards for the recovery,
recycling and disposal of materials and components of
cooling units.
“Dismantling”.